2020 Grand Design Momentum Suspension Problems
- Complaints
- 8about this part
- Share
- 28%of 29 total for the year
- Median mileage
- 10,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 8 complaints about the suspension of the 2020 Grand Design Momentum, 28% of the 29 complaints for this model year. Where a mileage was given, the median is 10,000 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I was informed that I have a broken frame upfront in the Kingpin area. I sent this to Grand Design and they denied any responsibility Grand Design Please find attached the pictures that were taken today (will Attach when sending final) and an email below to Blue Dog RV in Pasco show that I was very concerned about the front cabinets rubbing and asked to have them follow up with you. As you can see that email is dated Sept 7 2022 and is clearly still within the Warranty period for this frame problem. I have tried numerous times calling Blue Dog and left messages but no return calls. …”
NHTSA complaint #11550882, filed 2023-10“The contact owns a 2020 Grand Design Momentum RV. The contact stated that while in the process of lubricating the wet bolts of the RV, the contact noticed that the rear-most bolts were missing, and the springs were rubbing against the frame. The mobile technician performed a temporary repair at the residence. The RV was then towed to the dealer, where it was diagnosed. The dealer determined that the spring brackets needed to be straightened and reinforced and needed to be welded inside the brackets. …”
NHTSA complaint #11696640, filed 2025-10, 10,000 miles“Roof Membrane separating from nose cap, nose cap separating from roof membrane. 5th wheel pin box sinking up into rv upper deck when lowering onto the truck. Cargo and main doors open during transport. Sawdust on dresser in nose of the RV. Lag Screws unscrewing and/or loose in the upper deck. Stress fractures in fiberglass on the cap of RV. Pinch molding coming loose from underside of 5th Wheel skin. Screws backing out and/or breaking underneath the upper deck nose cap. Insulation underneath the front of the RV is falling off. Back Patio bubbling. …”
NHTSA complaint #11634643, filed 2025-01“Excess frame flex. Contacted Grand Design, they scheduled an inspection and then preformed followup repairs. New bracing and support were added by Grand Design.”
NHTSA complaint #11605321, filed 2024-07“Issues with: - original drum breaks failed due to incorrect wiring, requiring 100% assembly replacement. - front wall separation - trim and cabinets moving and separating from walls - missing and broken lag bolts - front weather stripping separated from front cap - excessive sawdust under cabinets after any travel - wallpaper wear showing excessive movement of front bed overhead cabinets during travel - floor joists separating from upper floor - slides opening during travel - leaf spring hangers bending and twisting, and breaking off - spare tire mount failed during highway travel, and spare…”
NHTSA complaint #11665612, filed 2025-06Suspension: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2024 | 2 | 18% |
| 2023 | 5 | 20% |
| 2022 | 13 | 39% |
| 2021 | 19 | 33% |
| 2020 | 8 | 28% |
| 2019 | 2 | 13% |
| 2018 | 3 | 43% |
| 2017 | 1 | 8% |
| 2016 | 1 | 10% |
| 2015 | 2 | 40% |
Other parts of the 2020 Grand Design Momentum
19 complaintsOther or unknown
16 complaintsLatches, locks and linkages
3 complaintsEquipment
2 complaintsBrakes
1 complaintsElectrical system
1 complaints
← All problems reported for the 2020 Grand Design Momentum
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology